You must have all 3 heroines to join before you can upgrade
[Business Chapter] - Upgrade conditions (the number of recipes required for upgrading refers to recipes that do not require ingredients)
< p>The first level: 5,000 texts, 5 recipes, taking one dayThe second level: 10,000 texts, 10 recipes, taking two days
The third level: Fifty thousand texts, 14 recipes, taking three days
Level 4: 100,000 texts, 16 recipes, taking four days
Level 5: 200,000 texts , 20 recipes, takes five days
If the upgrade conditions are met, a smiling face will appear after closing, and you can choose whether to upgrade immediately